Based on CST website, they claim that CST PCB Studio can import Altium files.

But when I open Import on CST , it gives me just these options :

I tried to Export Altium to HyperLynx and Import it to CST PCB Studio,but it gave error too. I also tried converting to AutoCAD and use ODB++ , but still gives error for importing.

Do you have any solution ?

Thanks.